<script>
  let url = location.href.split('?')
  let pars = url[1].split('&')
  let data = {}
  pars.forEach((n, i) => {
      let p = n.split('=')
      data[p[0]] = p[1]
  })
  if (!!data.app3Redirect) {
      self.location = decodeURIComponent(data.app3Redirect)
  }

</script>